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When using pdal to either translate to ply file or split a ply file in smaller chunks, it appears to be truncating values so I end up with point clouds with stripping. This does not occur with other formats - but I need .ply in particular.

E.g. when splitting up a bigger file....

 pdal split --capacity 1000000 in.ply out.ply

... I end up with the result below for the subsets. Are there parameters that may stop this from happening? (See the below pic)

point cloud with missing values/strips

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  • I had similar problem when translating LAS to PLY, and what worked for me was to use a pipeline instead of the direct PDAL command.
    – NanBlanc
    Commented Mar 19, 2021 at 18:46

1 Answer 1

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This is actually a precision problem where PDAL trim automatically some decimals. You need to control that with this option : --writers.ply.precision=6f (it say to the ply writers to have 6 decimals)

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    Excellent thanks very much!
    – crEO
    Commented Mar 22, 2021 at 14:03

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